Numbers k such that (41*10^k - 59)/9 is prime.

Terms

a(0) =2a(1) =3a(2) =11a(3) =14a(4) =15a(5) =20a(6) =23a(7) =24a(8) =39a(9) =104a(10) =374a(11) =428a(12) =698a(13) =1436a(14) =1521a(15) =1800a(16) =1809a(17) =3848a(18) =4796a(19) =46314a(20) =49182a(21) =82044a(22) =96137a(23) =141836